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News Release 09-076

New Blow for Dinosaur-Killing Asteroid Theory

Impact didn't lead to mass extinction 65 million years ago, geologists find

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This artist's rendering shows the Chicxulub crater at the time of the meteorite's impact.

This artist's rendering shows the Chicxulub crater at the time of the meteorite's impact.

Credit: NASA


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Photo of geologist Gerta Keller and others working on evidence for Chicxulub meteorite impact.

Geologists Gerta Keller, others, work to uncover evidence of the Chicxulub meteorite impact.

Credit: Gerta Keller, Princeton University


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Photo of sediments that show that the Chicxulub meteorite predated the mass extinction.

Sediments show that the Chicxulub meteorite predates a mass extinction 65 million years ago.

Credit: Gerta Keller, Princeton University


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